#include <iostream>
#include <vector>
#include <string>
using namespace std;

class A
{
public:
	A(){};
	A(const int& a)
	{
		_a = a;
	}
	
	A(const A& a) 
	{
		_a = a._a;
	}
private:
	int _b = 1;
	int _a = 0;
	int _c = 0;
	
};
int main()
{
	string a = "-1";
	int b = stoi(a);
	cout << b << endl;
	return 0;
}